Another highlight from the category is the “largest piece of Mars on Earth.” The Martian Meteorite, which Sotheby’s has ...

Sotheby’s may be better known for Warhols and Picassos, but this week, the Upper East Side auction house is going full geek. Through July 15, the annual Geek Week exhibition returns, transforming the ...

For those who associate Sotheby’s with blue-chip art sales, Geek Week is a reminder that the auction house doubles as a ...

A 6-foot-tall Ceratosaurus fossil is going up for auction at Sotheby's this July. Find out what makes this dinosaur so rare and valuable.

On the Ceratosaurus he puts it plainly: ‘Let's pretend that for people, we only had three skeletons: one's a complete adult, and two are just skulls [this is the case for Ceratosaurus]. That's the sum ...

Sotheby's is auctioning a Ceratosaurus skeleton that used to be displayed at the Mountain America Museum of Ancient Life in Utah. Do dinosaur bones belong in a museum or a "McMansion?" ...

The 150-million-year-old specimen is valued at up to $6 million by Sotheby’s. Some paleontologists worry this auction and earlier ones are driving fossil market speculators.

President Emmanuel Macron greeted Kate Middleton with a kiss towards her hand as the state visit from France began. But did the gesture break protocol? Inside the royal rules.